Mixing attachment for internal-combustion engines



Jan. 31, 1928.

W. H. MILLER MIXING ATTACHMENT FOR INTERNAL COMBUSTION ENGINES Filed. Jan. 4, 1921 Tzitawuwto z NH: M1 L LER.

claw/W Patented Jan. 31,

UNITED STATES WILLIAM H. MILLER, 0F CLEVELAND, OHIO.

MIXING ATTACHMENT FOR INTERNAL-GOMBUSTION ENGINES.

Application filed January 2:, 1921. Serial No. 434,903.

in the drawing accompanying this application, Fig. 1 is an enlarged view of a portion of a ca rburetor and manifold, together with my improved mixing device secured in place therein. Fig. 2 is a plan or top view of the mixing device itself, and Fig. 3 is a side elevation of the device shown in Fig. 2. Figs. l and 5 are sectional and bottom views, respectively, of a modified form of the invention. Fig. 6 illustrates a further modiification, in which the device is shown as formed of separable parts instead oi being made in integral form as in Fig. 1.

The invention comprises a relatively thin flat ring having a series of upright deflect-- ing vanes 3 arranged in a circle at one side thereof, each vane 3 being bent and curved inwardly at one of its upper end corners toward the center of ring 5 so as to produce a curved deflecting point 4L- opposite the innor edge of the ring. A deflecting or spread ing member is also provided at the bottom side of the ring beneath opening 5 and in Figs. 1, 2, 3 and 6 this spreading member comprises member 6 having a trustro-con ical shape having a large number of small. openings or perforations 7 in its side and being further provided with slightly larger openings 8 at its base where joined with ring 2. Openings 8 are also especially located in re'Ferem-c to the inturncd extremities 4; so that the mixture 1.J l-]')]' Gtl on the out-side of cone (3 will pass in streams through openings 8 and impinge and be de 'tloctcd. spirally by the points or inturned cxtremiticsla Thus, openings are located. immediately beneath. the turned corners 4E, and the cone 6 is spaced apart from the in nor -face 9 of the connecting branch 10 of the carburetor, see Fig. 1 wherein ring 2 is shown clamped between a flange 11 on the carburetor branch 10 and a flange 12 on the engine manifold 13. The central portion of the mixing device is practically open and unobstructed, but the perforated cone (3 acts to break up the passing fluid or mix;

'with said irnvardly-1)ro ture and to deflect them inwardly in fine streams to ard the center and also to create other streams by means of openings 8 directly beneath the bent extremities l; In this way a swirling mixing movement of the itluid or vapors is created during the operation of the engine and a perfect ail-- mixturedelivered through the engine intake manifold 13. Actual tests show that the engine can be operated with a much higher degree of ciliriency using a device o't this charactc as compared with an engine not so equipped.

In Figs. 4; and 5, I show a ring 15 with bent vanes 16 corresponding to the showing in Figs. 1 to 3, but in lieu ot employing a perforated cone I show a tlat ring 17 having a central conical spreader 18 connected by radial arms 19 to the ring. In Fig. (3 I show a ring 20 with bent or twisted vanes 21, a perforated cone 22 made in a separate piece, and the separate ring 17 with its conical spreader 18 interposed between ring 20 and cone 22.

The device is primarily intended for use in internal combustion engines but it may also be used to promote admixture of other fluids than gasoline and air, and therefore, no limitation in this respect or to the place of use of the device is intended.

What I claim is:

1. A mixing attachment for an internal combustion engine, comprising a flat ring having a circle of vanes at one side thereoi, the end extremities of said vanes being bent inwardly on curved lines; and a tapered spreading member at the opposite side of said ring having openings at its base in line ted (wtrcmities.

2. A mixing device l or use in connection with the n'lani'told oi an internal cmnbustion engine, comprising a member provider! with a depending portion having a central opening, a plurality of upwardly extending vanes on. the opposite side of said member and ill, tegral therewith, said vanes being turned inwardly at an upper corner to form a substantially hollowed surface, the turned in corners overlapping the opening but terminating short of the center thereof.

signed at Cleveland, in the county o't Cuyahoga, and State of Ohio, this 29th day of December, 1920.

WILLIAM s 

